Codes remedy?
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Codes remedy?
I ran some 110 unleaded and now have my SES light on. I went to advance Auto to have them pull the codes. They are P1133 & P1153. 1133= Insufficient switching Bank 1 sensor 1. 1153= insufficient switching Bank 2 sensor 1. Did I burn up my sensors and now need to replace them? QTP headers, no cats, and 02s in the header only 20K and no issues till now. Any suggestion or help is appreciated.